She lives with three friends, Olivia (Brit Morgan), Isabel (Brooke Markham) and Gustavo (Sean Marquette).
She is also close friends with Kobe (Connor Paolo) and is dating Tyler (William Moseley).
Laura is Marina's first Facebook friend and her profile is plastered in bizarre and disturbing images.
Marina's obsessive behavior begins to make Laura feel uncomfortable.
Left with no choice, she tries to delete her account, but an unknown error occurs.
When Kobe and Laura investigate Marina's Facebook page, they realize that the source code where it has been written in is not the normal code.
Tyler soon finds her, only to get stabbed in the throat by Kobe.
Laura escapes Kobe once again but reaches a dead end.
However, when Laura shares a picture of herself at her birthday dinner – to which Marina was not invited – Marina publicly and angrily confronts Laura at her college campus.
In the quarrel, Laura accidentally pushes Marina and her hood falls off, revealing Marina's hairless head, and she runs away.
Unable to delete the videos or deactivate her account, Laura's Facebook friend count continues to drop.
Soon after, Laura finds that she is being stalked by Marina's vengeful spirit, who promises to make her "lonely".
Laura hunts down the place where Marina committed suicide in order to destroy the black mirror that turned Marina into an evil spirit.